1. Evaluation of ground and orbit microvibration of OICETS
- Author
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Yoshihisa Takayama, Toshihiko Yamawaki, Toshio Kamiya, Yoshitaka Ooi, and Takashi Jono
- Subjects
Optical Inter-orbit Communications ,Engineering ,衛星搭載装置 ,Accelerometer ,Stability (probability) ,OICETS ,技術試験衛星 ,伝達関数 ,satellite perturbation ,Vibration measurement ,きらり ,spacecraft stability ,振動 ,Remote sensing ,加速度計 ,micro vibration equipment ,reaction wheel ,business.industry ,宇宙機安定性 ,satellite-borne instrument ,リアクションホイール ,Engineering Test Satellite ,ground test ,KIRARI ,Vibration ,accelerometer ,マイクロ振動装置 ,光衛星間通信 ,MVE ,Pointing systems ,Orbit (dynamics) ,transfer function ,衛星擾乱 ,地上試験 ,vibration ,business ,Test data - Abstract
近年、指向安定度劣化の主要因として検討が盛んな機械的振動擾乱について、OICETS (Optical Inter-orbit Communications Engineering Test Satellite:きらり)に搭載したMVE (Micro Vibration Equipment)の軌道上加速度データ出力をもとに、軌道上で実際に発生した振動擾乱についての評価を行う。軌道上データから構造伝達特性を評価し、この結果と地上試験データから得られる構造伝達特性との比較を行うことで、地上試験の結果が軌道上でどの程度再現しているかを確認し、地上試験の有効性について、考察を行う。, The microvibration generated by some instruments on orbit is considered as a key factor of pointing stability deterioration. Therefore it is important that the influence of the microvibration is estimated before the launch. In this paper the results of the ground tests by using of OICETS (Optical Inter-orbit Communications Engineering Test Satellite: KIRARI) MTM (Mechanical Test Model) and the on orbit measured result by the accelerometer (MVE: Micro Vibration Equipment) installed in OICETS are described. By using these results and an assumption, the transfer characteristics from main disturbance sources to MVE installed in OICETS are calculated. We compare these structural transfer characteristics and confirm the reproducibility of the ground test on orbit and the effectiveness of the ground test., 資料番号: AA0063481054
- Published
- 2007
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